[vsnet-grb 483445] GCN/SWIFT_FOM_OBSERVE

Bacodine vxw at capella2.gsfc.nasa.gov
Mon May 3 02:46:31 JST 2021


TITLE:           GCN/SWIFT NOTICE
NOTICE_DATE:     Sun 02 May 21 17:46:31 UT
NOTICE_TYPE:     Swift-FOM Will_Observe
TRIGGER_NUM:     1046414,   Seg_Num: 0
GRB_RA:          270.742d {+18h 02m 58s} (J2000),
                 271.083d {+18h 04m 20s} (current),
                 269.942d {+17h 59m 46s} (1950)
GRB_DEC:         -29.818d {-29d 49' 05"} (J2000),
                 -29.817d {-29d 48' 58"} (current),
                 -29.820d {-29d 49' 11"} (1950)
GRB_DATE:        19336 TJD;   122 DOY;   21/05/02
GRB_TIME:        63573.05 SOD {17:39:33.05} UT
TRIGGER_INDEX:   20000
RATE_SIGNIF:     0.00 [sigma]
IMAGE_SIGNIF:    8.60 [sigma]
FLAGS:           0x3
MERIT:           100.00
SUN_POSTN:        40.10d {+02h 40m 23s}  +15.60d {+15d 35' 59"}
SUN_DIST:        131.28 [deg]   Sun_angle= 8.6 [hr] (West of Sun)
MOON_POSTN:      302.01d {+20h 08m 02s}  -24.09d {-24d 05' 07"}
MOON_DIST:        28.07 [deg]
MOON_ILLUM:      62 [%]
GAL_COORDS:        1.15, -3.71 [deg] galactic lon,lat of the burst (or transient)
ECL_COORDS:      270.65, -6.38 [deg] ecliptic lon,lat of the burst (or transient)
COMMENTS:        SWIFT Figure-of-Merit decision.  
COMMENTS:        This was of sufficient merit to become the new Automated Target;  
COMMENTS:        but if the Current PPT has a greater merit, then we will not request a slew.  
COMMENTS:        FOM will request the s/c to slew.  
COMMENTS:        The S/C has yet to make its decision about safe to slew or not.  
COMMENTS:        This does not match any source in the ground catalog.  
COMMENTS:           
COMMENTS:        The next comments were copied from the BAT_POS Notice:  
COMMENTS:        This is an image trigger.  (The RATE_SIGNIF is undefined.)  
COMMENTS:        A point_source was found.  
COMMENTS:        This does not match any source in the on-board catalog.  
COMMENTS:        This is a GRB.  
COMMENTS:        This trigger occurred at longitude,latitude = 152.03,-10.50 [deg].  



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